{ "id": "math/0701472", "version": "v1", "published": "2007-01-17T09:29:26.000Z", "updated": "2007-01-17T09:29:26.000Z", "title": "Pencils of double coverings of curves", "authors": [ "Luis Fuentes Garcia" ], "categories": [ "math.AG" ], "abstract": "Let X be a smooth curve of genus g. When pi>=3g and d>=pi-2g+1 we show the existence of a double covering gamma:C-->X where C a smooth curve of genus pi with a base-point-free pencil of degree d which is not the pull-back of a pencil on X.", "revisions": [ { "version": "v1", "updated": "2007-01-17T09:29:26.000Z" } ], "analyses": { "subjects": [ "14H51", "14H30" ], "keywords": [ "double covering", "smooth curve", "genus pi" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007math......1472F" } } }